RICOH R3116x SERIES Low Voltage Detector with Output Delay Data Sheet User Manual
Summary
The R3116x series are high-precision CMOS voltage detector ICs designed for reliable system monitoring and automatic reset functions. These ultra-low power devices detect critical drops in supply voltage across a wide range (0.5V to 6.0V), making them ideal for applications like CPU/logic circuit reset, battery backup systems, and power failure detection. This manual provides comprehensive technical details, including pin configurations, package selection guides, electrical characteristics, and operating limits, enabling engineers to select the precise detector threshold needed for their embedded designs requiring maximum efficiency and reliability.
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R3116x SERIES
0.8% LOW VOLTAGE DETECTOR WITH OUTPUT DELAY
NO.EA-161-120423
OUTLINE The R3116x series are CMOS-based voltage detector ICs with high detector threshold accuracy and ultra-low supply current, which can be operated at an extremely low voltage and is used for system reset as an example. Each of these ICs consists of a voltage reference unit, a comparator, resistors for detector threshold setting, an output driver, a hysteresis circuit and an output delay circuit. The detector threshold is internally fixed with high accuracy and does not require any adjustment. Two output types, Nch open drain type and CMOS type are available. The R3116x series are operable at a lower voltage than that of the R3112x series, and can be driven by a single battery. Three types of packages, SOT-23-5, SC-82AB, and DFN(PLP)1010-4 are available.
FEATURES • Supply Current ......................................................................Typ. 0.35μA (-VDET=1.5V, VDD=-VDET+1V) • Operating Voltage Range......................................................0.5V to 6.0V (Topt=25°C) • Detector Threshold Range....................................................0.7V to 5.0V (0.1V steps) (For other voltages, please refer to MARK INFORMATIONS.) • Detector Threshold Accuracy................................................±0.8% (-VDET ≥ 1.5V) • Temperature-Drift Coefficient of Detector Threshold ............Typ. ±30ppm/°C • Built-in Output Delay Circuit..................................................Typ. 100ms with an external capacitor: 0.022μF • Output Delay Time Accuracy.................................................±15% (-VDET ≥ 1.5V) • Output Types.........................................................................Nch Open Drain "L" and CMOS • Packages ..............................................................................DFN(PLP)1010-4, SC-82AB, SOT-23-5
APPLICATIONS • CPU and Logic Circuit Reset • Battery Checker • Window Comparator • Wave Shaping Circuit • Battery Back-up Circuit • Power Failure Detector
Page Summary Contents For RICOH R3116x SERIES Low Voltage Detector with Output Delay Data Sheet User Manual
Manual Details
| Brand | Ricoh |
|---|---|
| Pages | 24 |
| File Size | 445.33 KB |
| Published | May 27, 2026 |
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Frequently Asked Questions
What is the typical supply current for the R3116x series?
The typical supply current is 0.35μA (assuming VDET=1.5V, VDD=-VDET+1V).
Can this voltage detector be powered by a single battery?
Yes, the R3116x series are operable at lower voltages than the R3112x series and can be driven by a single battery.
What types of output signals are available?
Two output types are available: Nch Open Drain "L" and CMOS type
How is the detector threshold set or adjusted?
The detector threshold is internally fixed with high accuracy (±0.8%) and does not require any adjustment.